【摘要】 本文从555定时器的输入输出的逻辑关系出发,分析了目前应用较多的几种等效逻辑图;指出了它们的错误与不足,并逐一进行了修正。最后,笔者给出了一个位得推荐的等效逻辑图。更多还原

【Abstract】 This paper analyses a number of equivatent logical diagrams which more applied, from logi al relation of 555 timer of input and output, It indicates whose wrony and insufficiency, and revises one by one. Finaty, the writer gives a equivatent logical diagram which is recommendable.更多还原